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IPv6: Create single way to format IP addresses

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This commit is contained in:
Erik Ekman
2014-02-06 19:39:16 +01:00
parent a737d6ea7f
commit f02339b3b2
6 changed files with 41 additions and 27 deletions
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25
src/common.c
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@@ -113,6 +113,31 @@ check_superuser(void (*usage_fn)(void))
#endif
}
char *
format_addr(struct sockaddr_storage *sockaddr, int sockaddr_len)
{
static char dst[INET6_ADDRSTRLEN + 1];
memset(dst, 0, sizeof(dst));
if (sockaddr->ss_family == AF_INET && sockaddr_len >= sizeof(struct sockaddr_in)) {
struct sockaddr_in *addr = (struct sockaddr_in *) sockaddr;
inet_ntop(addr->sin_family, &addr->sin_addr, dst, sizeof(dst) - 1);
} else if (sockaddr->ss_family == AF_INET6 && sockaddr_len >= sizeof(struct sockaddr_in6)) {
struct sockaddr_in6 *addr = (struct sockaddr_in6 *) sockaddr;
if (IN6_IS_ADDR_V4MAPPED(&addr->sin6_addr)) {
struct in_addr ia;
/* Get mapped v4 addr from last 32bit field */
memcpy(&ia.s_addr, &addr->sin6_addr.s6_addr[12], sizeof(ia));
inet_ntop(AF_INET, &ia, dst, sizeof(dst) - 1);
} else {
inet_ntop(addr->sin6_family, &addr->sin6_addr, dst, sizeof(dst) - 1);
}
} else {
dst[0] = '?';
}
return dst;
}
int
get_addr(char *host, int port, int addr_family, int flags, struct sockaddr_storage *out)
{